{"id":"5b352db1-e6ee-4e8e-9204-b672f337a867","shortId":"cXPejE","kind":"x402","title":"x402-gated premium API endpoint on Base, payable per-request in USDC.","tagline":"x402-gated premium API endpoint on Base, payable per-request in USDC.","description":"This endpoint at `/api/v1/claims/68` is part of the lowpaymentfee.com platform, which offers a collection of x402-protocol pay-per-request APIs spanning data & analytics, AI/ML inference, finance & Web3, and infrastructure utilities. The specific endpoint is labeled \"Premium API Access\" and accepts POST requests gated by the x402 payment protocol on the Base network.\n\nThe x402 challenge confirms the endpoint is live and requires payment in USDC (contract `0x8335…2913` on Base) with a maximum amount of 20,000 base units, which equals $0.02 per request (USDC uses 6 decimals). Payment is made via the `exact` scheme to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`, with a 300-second timeout. No API keys or rate limits are advertised; access is instant upon payment.\n\nHowever, the specific functionality behind `/api/v1/claims/68` is not documented. The site's landing page lists various endpoint categories (analytics, AI, finance, utilities) but does not include a `/claims/` route in its public catalog. There is no OpenAPI schema, no request/response examples, and the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further content. Without knowing what this endpoint actually returns, its practical utility cannot be assessed.","tags":[],"capabilities":["x402-payment","per-request-billing","usdc-payment","base-network","post-method"],"categories":["api","crypto"],"synonyms":["lowpaymentfee","low payment fee API","x402 API","pay-per-call API","USDC micropayment API","claims endpoint","Base network API"],"warnings":["The specific functionality of /api/v1/claims/68 is completely undocumented — it does not appear in the site's own API catalog.","No OpenAPI schema, request body format, or response examples are available.","All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no useful content.","The endpoint path '/claims/68' suggests a resource-specific route but its purpose is unknown."],"endpointUrl":"https://lowpaymentfee.com/api/v1/claims/68","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/claims/68","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is zero documentation on what /api/v1/claims/68 actually does, no request/response schema, and the docs pages are empty. The endpoint is not listed in the site's own public catalog, making it effectively a stub listing.","verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":"anthropic/claude-opus-4.6","enrichmentVersion":2,"enrichedAt":"2026-04-19T04:19:35.582Z","embedding":[-0.025665283,-0.013092041,0.051635742,0.028030396,-0.0029716492,-0.031143188,-0.04083252,0.019058228,0.069885254,-0.07196045,0.042266846,-0.059906006,-0.032470703,-0.045684814,-0.032409668,0.011039734,-0.034820557,0.010421753,-0.046905518,0.034179688,0.03274536,-0.016036987,-0.0149383545,0.014732361,-0.0068893433,-0.029953003,-0.0064086914,-0.011459351,-0.009933472,-0.025299072,0.022903442,-0.02279663,0.00011783838,0.019104004,-0.021499634,-0.00058698654,0.0015897751,0.050354004,0.03729248,-0.01259613,-0.002779007,-0.04324341,-0.016616821,-0.0045280457,-0.05303955,0.020828247,0.031555176,-0.018859863,-0.03173828,-0.0021820068,-0.02784729,-0.0234375,-0.03012085,0.007926941,0.024291992,0.025939941,-0.0039367676,-0.003112793,0.0073890686,0.009933472,-0.020812988,-0.054229736,-0.008125305,-0.016830444,0.009437561,0.054870605,-0.0061950684,0.060546875,0.019485474,0.051116943,0.040802002,0.06573486,0.041748047,0.022842407,-0.015007019,-0.0137786865,0.013938904,0.054534912,-0.030197144,0.00072193146,-0.021514893,-0.012466431,-0.05255127,-0.008590698,-0.004459381,-0.055847168,-0.0070228577,0.012039185,-0.04446411,0.029037476,-0.057800293,0.0071144104,-0.006504059,-0.005004883,-0.0054359436,-0.007194519,-0.005886078,0.034240723,-0.009475708,0.01210022,0.019485474,-0.047210693,0.034606934,0.0072402954,0.06732178,0.041748047,0.0126571655,0.0446167,0.005207062,-0.016418457,0.0039520264,0.0018558502,-0.019943237,-0.021087646,0.016494751,0.0021152496,-0.038208008,0.03074646,-0.004348755,0.02708435,-0.06958008,0.05105591,0.015029907,-0.034423828,0.02104187,-0.041748047,0.005744934,-0.005580902,-0.047180176,-0.007095337,0.011444092,0.0078048706,0.012023926,-0.035980225,-0.02456665,-0.00793457,-0.016281128,-0.023773193,-0.056030273,-0.015853882,0.026901245,-0.020935059,0.020095825,0.031799316,-0.11602783,-0.0044670105,-0.05444336,0.026870728,-0.03564453,-0.011985779,0.015403748,0.041656494,-0.01600647,0.012130737,-0.030563354,-0.019729614,-0.012954712,0.031311035,-0.005645752,0.041168213,0.0036125183,0.03540039,0.026382446,0.025909424,0.024093628,0.049194336,-0.008491516,-0.059661865,-0.07733154,-0.039978027,-0.007843018,-0.011253357,-0.032562256,-0.002248764,-0.004108429,-0.06903076,-0.02520752,-0.013259888,0.01828003,-0.044647217,-0.0059661865,-0.019607544,0.004722595,-0.028427124,-0.06964111,-0.026351929,-0.013595581,0.07696533,0.0055351257,0.009155273,0.021636963,-0.019439697,0.05215454,0.012939453,-0.02293396,-0.04257202,0.018951416,-0.0068855286,0.028900146,0.010597229,0.0072135925,-0.03466797,0.024505615,0.062286377,0.013717651,-0.001411438,-0.00806427,-0.049438477,-0.034332275,-0.030197144,-0.00012993813,-0.0033302307,0.005973816,0.014808655,-0.023162842,-0.02748108,-0.010147095,0.01600647,0.02645874,0.06286621,0.01927185,-0.004886627,0.0033950806,0.005695343,-0.029464722,0.052581787,0.029327393,0.025161743,-0.027770996,-0.027252197,0.02494812,0.031280518,-0.034606934,-0.002128601,-0.028244019,0.023101807,0.006111145,0.013313293,0.037139893,-0.025283813,-0.01953125,-0.02961731,-0.013336182,0.016174316,0.019515991,-0.03390503,-0.053466797,-0.05871582,0.032958984,0.06945801,0.019836426,0.01386261,0.019210815,-0.017929077,-0.014717102,-0.05807495,0.05218506,0.066589355,-0.023452759,-0.0118255615,0.032043457,-0.028198242,-0.030349731,-0.044006348,-0.018829346,-0.024551392,-0.015716553,-0.00894928,-0.029434204,0.016281128,0.010391235,0.041259766,0.04949951,-0.013580322,-0.041992188,-0.03164673,-0.005050659,0.0023593903,-0.018371582,-0.00969696,0.00021576881,0.016281128,0.029403687,0.0018901825,0.032836914,0.0007777214,0.004852295,-0.01864624,-0.011253357,-0.018661499,-0.047973633,0.008514404,-0.028167725,-0.05618286,0.014678955,0.02357483,0.056427002,-0.040039062,0.027877808,-0.0012779236,-0.006259918,0.07800293,-0.029251099,-0.045715332,-0.0059165955,0.017913818,0.048736572,0.03869629,0.018295288,-0.0022773743,-0.027694702,0.03479004,-0.009338379,-0.027618408,0.016220093,0.01574707,0.03173828,0.006248474,-0.05886841,-0.03540039,-0.014480591,-0.027542114,0.03640747,-0.01789856,0.015350342,-0.0007586479,0.006164551,-0.033996582,-0.0046195984,-0.02418518,0.014152527,-0.0068588257,-0.0107803345,-0.020019531,-0.013916016,0.016143799,0.027557373,-0.024368286,-0.0034675598,0.035003662,0.026062012,-0.015136719,-0.021942139,-0.024368286,-0.030776978,0.012321472,0.022903442,0.018661499,0.024353027,0.027770996,-0.035064697,0.0146865845,0.008232117,0.019134521,0.015113831,0.0020160675,0.00843811,-0.0602417,-0.058166504,-0.030273438,-0.05026245,0.036010742,0.013923645,0.014427185,0.040649414,0.00415802,-0.021636963,-0.0340271,0.04650879,-0.01776123,0.011749268,0.030853271,-0.023254395,-0.03488159,-0.002292633,0.010726929,0.0053215027,0.028778076,0.005458832,0.007801056,0.06124878,0.032165527,0.010139465,0.013977051,0.016647339,0.019500732,-0.013809204,-0.013336182,-0.02571106,-0.014778137,0.00617218,-0.016342163,-0.026428223,-0.069885254,0.044067383,0.027740479,0.074645996,0.008399963,0.020507812,0.036895752,-0.022064209,-0.0009551048,-0.044281006,-0.033081055,-0.044433594,-0.036895752,0.024383545,-0.012413025,-0.0103302,-0.024597168,0.02229309,0.000013828278,0.011787415,-0.045166016,0.06695557,-0.00048708916,-0.0102005005,0.019348145,0.006340027,0.043060303,0.0690918,-0.03729248,0.016921997,0.03225708,-0.03189087,-0.0015764236,0.039154053,-0.010536194,-0.0015697479,-0.05102539,-0.027160645,0.0050621033,-0.0149383545,-0.049102783,-0.0029735565,-0.0024147034,0.033813477,0.015571594,-0.01473999,-0.018112183,0.00020384789,-0.004688263,-0.056427002,-0.0149002075,-0.0418396,0.026184082,0.04244995,-0.041748047,0.0124435425,0.008117676,0.004245758,0.012077332,-0.006465912,-0.00749588,-0.013702393,-0.039245605,0.018341064,0.0068511963,0.022750854,0.017471313,0.033081055,0.03930664,0.023361206,0.031173706,0.009284973,-0.021072388,-0.03881836,0.019638062,-0.044433594,0.001115799,0.0011482239,-0.0206604,0.0022220612,-0.00642395,-0.009918213,-0.00038909912,0.00037002563,-0.022827148,0.014007568,0.014808655,-0.04714966,-0.013282776,-0.041748047,-0.017028809,0.011054993,0.053955078,0.032104492,-0.004711151,-0.057281494,-0.0211792,0.029663086,-0.009246826,0.0023212433,-0.014976501,-0.027740479,-0.026565552,-0.036376953,-0.0048828125,-0.026931763,0.026885986,0.0007791519,-0.008850098,0.03829956,-0.011146545,0.011039734,0.007205963,-0.014846802,0.05532837,-0.013977051,-0.0019168854,-0.020980835,0.011352539,-0.00095272064,-0.018081665,-0.038635254,0.065979004,0.006614685,0.041229248,-0.03387451,0.014831543,0.013626099,0.018630981,0.007801056,-0.03466797,-0.019302368,0.0107040405,-0.046325684,-0.064819336,0.043670654,-0.005630493,0.034332275,0.0014352798,0.014007568,0.039794922,-0.012290955,-0.0034255981,0.037200928,-0.043029785,-0.008995056,-0.021697998,-0.039245605,-0.021835327,0.01626587,-0.0071792603,0.01737976,-0.0107803345,0.01096344,0.0034618378,-0.027633667,0.037719727,0.011528015,0.0033950806,0.036376953,0.015319824,0.020950317,0.040161133,0.013374329,-0.009414673,0.028930664,0.0005645752,0.010231018,-0.0005016327,0.035614014,0.024276733,-0.019973755,0.0014028549,-0.0012140274,-0.016326904,-0.010749817,-0.007751465,-0.0012149811,0.030807495,0.0005970001,-0.037719727,0.04437256,0.014060974,-0.020492554,-0.012420654,0.015640259,0.015281677,-0.037384033,0.02180481,0.034179688,0.048461914,-0.022598267,0.0021514893,0.014541626,0.02281189,0.031280518,0.017944336,-0.010673523,0.010025024,-0.028900146,0.012756348,0.008995056,-0.010108948,-0.0065841675,-0.011016846,0.02758789,0.02470398,0.022277832,-0.02394104,-0.019577026,-0.0096206665,0.00017297268,-0.0079574585,0.022140503,0.018554688,0.021347046,-0.017120361,0.035308838,0.0126571655,-0.04434204,-0.015098572,0.016204834,0.03540039,-0.03829956,-0.010932922,0.011199951,-0.0045051575,0.043823242,-0.062805176,0.01586914,0.009094238,0.026443481,-0.018463135,-0.05154419,-0.034698486,-0.0079422,0.029647827,0.0066337585,0.011116028,0.027770996,0.0019073486,-0.0015764236,-0.004951477,-0.004283905,-0.01007843,-0.0019397736,-0.049835205,-0.005584717,-0.0012435913,-0.014266968,-0.024810791,0.010421753,-0.026733398,-0.0368042,-0.0011901855,-0.0154418945,-0.004283905,-0.0069084167,0.014717102,0.03540039,0.007461548,0.009239197,-0.01977539,-0.01348114,0.0053634644,0.024932861,0.022644043,-0.040985107,0.021118164,-0.0076026917,-0.00548172,-0.010154724,0.020736694,0.0149383545,0.023269653,0.002609253,0.025436401,-0.04547119,0.022384644,-0.018844604,0.014633179,0.016571045,-0.03062439,0.0022506714,-0.026321411,-0.011566162,0.047180176,-0.01689148,-0.002620697,-0.027954102,-0.032196045,-0.009094238,-0.046142578,0.0010204315,0.02734375,0.031066895,-0.031402588,0.008407593,0.0054016113,-0.0067634583,-0.012008667,-0.0137786865,-0.008239746,0.026870728,0.012451172,0.000053703785,-0.021560669,-0.025894165,0.010917664,-0.00983429,-0.068237305,-0.043701172,-0.019836426,0.017562866,-0.0013771057,-0.0048828125,-0.027740479,-0.014190674,-0.007522583,-0.030059814,0.011894226,-0.004917145,0.019638062,0.006454468,-0.028030396,0.00667572,0.018081665,-0.011779785,0.03225708,-0.014533997,-0.014465332,-0.033416748,0.01713562,0.03540039,0.025680542,0.013137817,-0.0138168335,-0.00466156,-0.023590088,-0.054595947,-0.018112183,-0.004425049,0.01763916,0.0022392273,-0.018661499,-0.040039062,-0.016967773,-0.02835083,-0.008743286,0.012062073,0.006778717,0.015319824,0.00198555,0.00040006638,-0.009094238,-0.018218994,-0.025360107,0.009941101,0.010856628,0.002357483,-0.0023212433,0.040985107,0.016052246,-0.013847351,-0.0061950684,0.004436493,0.022918701,-0.02583313,0.002708435,0.0028190613,0.014320374,-0.019134521,-0.018035889,-0.030136108,0.009552002,0.07232666,-0.006038666,0.016693115,-0.025878906,-0.005432129,0.018249512,0.03591919,-0.0357666,-0.0031700134,-0.047210693,0.008308411,-0.014770508,0.029464722,0.0037879944,0.018447876,-0.032287598,-0.06124878,0.00680542,0.016540527,-0.00579834,-0.05908203,-0.00944519,-0.053741455,-0.005958557,-0.013717651,-0.01586914,0.010307312,0.009811401,-0.009765625,-0.0904541,-0.007904053,0.059387207,0.012756348,0.018920898,-0.01713562,0.015357971,0.018173218,-0.02243042,-0.02609253,0.029464722,-0.021499634,-0.019744873,-0.028793335,0.046203613,-0.012802124,-0.0390625,0.026275635,0.023101807,0.02029419,-0.01828003,0.004383087,-0.011505127,-0.012680054,-0.00356102,0.015625,-0.00080776215,-0.024230957,0.032470703,-0.03829956,0.023757935,0.03250122,0.00046515465,0.008773804,0.041381836,0.042144775,-0.04458618,-0.0062026978,0.030059814,0.011787415,0.049865723,-0.028961182,0.030776978,0.020690918,-0.011764526,0.014465332,-0.016281128,-0.035003662,-0.04168701,-0.021270752,0.010627747,-0.0022335052,0.013008118,-0.021408081,0.00944519,0.026229858,0.008964539,0.0024967194,-0.010429382,-0.009231567,-0.002828598,0.010856628,0.0036334991,0.010803223,0.003982544,0.019622803,0.017425537,0.05038452,0.022323608,-0.010681152,0.021469116,0.010314941,-0.02911377,0.01184082,0.006652832,0.015068054,0.015029907,0.021270752,0.026000977,-0.036376953,-0.02407837,0.0015230179,-0.01751709,0.004196167,0.0012178421,-0.001458168,0.011810303,-0.0023479462,0.013687134,-0.051208496,0.018707275,-0.02748108,-0.028244019,0.0048103333,-0.01953125,-0.00008559227,0.011306763,-0.007865906,0.020736694,0.008666992,0.04815674,-0.0001348257,-0.0134887695,0.024887085,0.02633667,0.011428833,-0.02130127,0.001739502,-0.004787445,-0.0072784424,0.01399231,-0.01084137,0.006542206,0.02406311,-0.010971069,0.0076675415,0.0008068085,0.036224365,-0.00039839745,0.024108887,-0.00018692017,0.0118255615,-0.026672363,0.0385437,-0.05090332,0.0006465912,0.023956299,0.0027885437,-0.010108948,-0.016204834,-0.034423828,0.014320374,0.0075950623,-0.0071029663,0.047546387,-0.006084442,0.022445679,-0.020996094,-0.022583008,-0.0067977905,-0.013885498,-0.016921997,0.027877808,0.0016078949,-0.014793396,0.017089844,-0.025894165,0.024642944,-0.047821045,-0.00014746189,-0.009529114,0.009094238,-0.00749588,-0.03463745,-0.010734558,-0.018417358,-0.007167816,0.0065345764,-0.0017147064,0.041381836,0.03326416,0.012542725,0.018478394,0.010627747,0.007522583,-0.04067993,-0.030776978,0.0062828064,-0.04446411,0.019577026,-0.030822754,0.049713135,0.050048828,0.001625061,0.027923584,0.059814453,0.032440186,0.026412964,0.020812988,-0.029327393,0.017456055,-0.014045715,0.028381348,-0.000049889088,0.062347412,-0.011451721,0.016677856,-0.0025691986,0.016662598,-0.0079422,0.026382446,0.06964111,0.03463745,-0.015266418,0.045928955,-0.0019254684,-0.019561768,-0.01612854,-0.020843506,0.0602417,-0.009178162,0.03945923,0.023452759,0.0049934387,-0.003534317,0.032104492,-0.024673462,-0.035491943,0.049835205,0.02293396,-0.014205933,-0.013771057,-0.021362305,0.018753052,-0.040527344,-0.017028809,0.023742676,-0.0030441284,0.0030059814,-0.004737854,0.0042495728,-0.0063972473,0.017608643,0.022232056,0.020584106,-0.024490356,0.00869751,0.01777649,0.014137268,0.019897461,0.0035476685,0.025177002,-0.021759033,-0.002445221,0.00008928776,0.010902405,0.0032176971,-0.01763916,0.025314331,0.01953125,0.06427002,0.033325195,-0.025558472,0.0028896332,0.023666382,0.023590088,0.0107421875,0.03074646,0.02154541,0.021636963,0.0259552,0.053955078,0.024246216,-0.033721924,0.025558472,-0.012710571,0.012207031,-0.0033092499,-0.018615723,0.0104904175,-0.013076782,0.011413574,0.00522995,-0.00059080124,0.024154663,0.03314209,0.011260986,-0.0049591064,-0.022140503,0.017211914,-0.015670776,0.00497818,0.019836426,-0.026321411,0.0043525696,0.010772705,0.031799316,-0.0158844,0.036132812,-0.007167816,-0.022766113,0.0049934387,0.00299263,-0.038269043,-0.012275696,0.019226074,-0.002401352,-0.03250122,0.013595581,0.020980835,-0.012825012,0.026931763,-0.01222229,0.006374359,-0.005207062,0.03137207,0.0028247833,-0.011482239,-0.0071525574,-0.0027923584,0.038726807,0.038146973,-0.005794525,0.005683899,-0.01776123,0.0065231323,0.010002136,0.0011425018,0.0025939941,0.005710602,-0.0066566467,-0.04425049,0.009902954,0.05355835,0.016159058,0.02809143,0.012367249,-0.012802124,-0.004272461,0.01612854,0.013191223,-0.010375977,-0.017623901,0.014343262,-0.021865845,0.048217773,0.027694702,-0.0009675026,0.024429321,-0.010826111,-0.02368164,0.00005567074,-0.011741638,0.018417358,-0.011680603,0.027114868,-0.0138168335,0.017700195,-0.021438599,-0.040893555,0.011734009,-0.019042969,-0.013282776,-0.026565552,0.010787964,0.01448822,0.009155273,0.024932861,0.018844604,-0.03564453,0.07183838,-0.015457153,0.049072266,-0.026855469,0.013542175,0.04852295,0.035003662,0.04446411,0.015113831,0.01512146,-0.01876831,0.015007019,0.033843994,0.029083252,0.01737976,-0.013664246,-0.023803711,0.023788452,-0.0076293945,0.024780273,-0.004722595,-0.006515503,0.022521973,0.0045661926,-0.010597229,0.010818481,-0.0027923584,0.0129470825,0.036315918,-0.038085938,-0.0021533966,-0.00504303,-0.022827148,0.038116455,0.010498047,0.007972717,0.006210327,-0.021331787,0.033172607,-0.021530151,-0.01739502,0.0043296814,0.026382446,-0.05178833,-0.0026054382,-0.00018250942,0.003967285,-0.021347046,0.03189087,0.04269409,0.0121536255,0.01739502,0.027511597,-0.002565384,0.046844482,-0.0052108765,0.023040771,0.04260254,-0.0008735657,-0.026641846,0.016540527,0.017593384,-0.025482178,-0.0058174133,0.02835083,-0.008155823,0.010971069,0.000910759,-0.021026611,0.023376465,0.0032405853,-0.0158844,0.0027656555,-0.008125305,-0.020629883,0.0055389404,0.01512146,0.007106781,0.014518738,0.010437012,-0.022781372,0.007881165,0.034423828,0.034179688,-0.04586792,0.0134887695,0.020065308,0.010971069,-0.036071777,-0.025894165,-0.009857178,-0.029800415,0.010520935,0.026275635,0.01473999,0.007133484,-0.02784729,-0.004463196,0.040802002,0.020965576,0.023025513,0.0036888123,-0.0042686462,0.020889282,-0.019729614,0.012825012,-0.025421143,-0.017425537,0.011199951,-0.0010557175,-0.013916016,-0.019454956,0.026672363,-0.0028629303,0.013244629,0.0017623901,-0.0020694733,0.03753662,-0.01574707,-0.0038928986,-0.0023384094,0.021774292,-0.008255005,-0.030014038,-0.028381348,0.025131226,0.044647217,-0.015174866,-0.0070610046,0.014663696,0.019317627,0.016983032,0.03503418,0.007259369,0.047576904,0.0211792,-0.027297974,-0.025314331,0.019363403,-0.018234253,-0.043121338,0.039276123,-0.025634766,-0.020233154,0.01725769,0.007095337,0.0038166046,-0.033569336,-0.02067566,-0.0072784424,-0.015960693,0.018753052,-0.0053596497,0.010215759,-0.03152466,-0.015808105,0.0073776245,-0.018875122,-0.027770996,-0.03488159,-0.019180298,-0.02142334,-0.051818848,0.022766113,-0.024780273,0.014015198,-0.021148682,0.010246277,-0.009429932,0.03074646,-0.0040283203,-0.006996155,0.006565094,0.02684021,-0.009925842,0.01386261,0.012321472,-0.011665344,-0.03945923,-0.012718201,-0.008804321,-0.008201599,0.017120361,-0.0075950623,0.032440186,0.00051784515,-0.014335632,-0.00015807152,-0.009239197,-0.0042762756,0.010520935,-0.030670166,-0.012077332,0.011581421,0.024642944,-0.005973816,-0.015281677,0.04458618,-0.021743774,-0.011428833,0.03753662,0.040527344,0.009590149,0.041534424,-0.0018281937,-0.008857727,-0.024353027,0.011268616,-0.012481689,0.0027256012,-0.0045051575,-0.0022602081,-0.009941101,0.007583618,0.01902771,-0.0014514923,0.008125305,0.015571594,0.009284973,-0.009338379,0.024917603,0.010986328,0.012390137,-0.018859863,-0.015625,0.031463623,0.040618896,0.019226074,0.0068969727,0.00025844574,0.014045715,-0.019714355,0.0012617111,0.024368286,-0.022827148,-0.032287598,-0.004096985,-0.031066895,0.012939453,-0.0016345978,0.0055351257,0.00756073,0.017059326,-0.017059326,-0.020248413,-0.00983429,0.017745972,0.014770508,-0.00034356117,-0.0064888,0.0017538071,0.023590088,-0.024551392,0.0053901672,-0.020187378,-0.02029419,-0.0065345764,-0.02078247,0.02848816,0.00554657,-0.021774292,0.0062561035,-0.004875183,-0.0015649796,0.0115737915,0.029769897,-0.017242432,-0.006008148,0.017974854,0.028320312,-0.024902344,0.0184021,-0.02809143,-0.0054130554,0.021850586,-0.0067634583,0.021453857,-0.016571045,0.022338867,0.013442993,-0.018569946,0.028381348,-0.0014410019,0.032409668,-0.016418457,0.0023975372,-0.0020561218,-0.014389038,-0.005630493,-0.0049552917,-0.032714844,-0.0052604675,-0.0115737915,-0.03375244,0.014572144,0.01625061,0.030197144,-0.0031013489,0.035583496,-0.015586853,-0.019958496,0.000207901,0.014595032,-0.011352539,0.0031032562,0.031829834,0.009498596,0.011024475,0.00064611435,-0.017791748,-0.025817871,-0.0143585205,0.015060425,-0.0055274963,0.0045051575,0.024261475,0.01537323,0.03866577,0.007926941,0.021484375,0.022140503,0.010673523,0.0107421875,0.016021729,0.037078857,0.0107421875,-0.023452759,0.0070343018,0.002040863,-0.020690918,-0.018630981,-0.022842407,0.0042304993,-0.029006958,0.0055389404,-0.00013577938,0.028305054,-0.018676758,0.01977539,-0.017120361,0.010528564,-0.027954102,-0.0071258545,-0.032470703,-0.00094509125,0.03704834,0.01574707,-0.004634857,0.013473511,-0.02571106,0.02947998,0.04852295,0.0077934265,-0.035461426,-0.0073165894,0.013633728,0.001578331,-0.008369446,0.0051193237,-0.008590698,-0.011199951,-0.004398346,-0.011405945,0.012161255,-0.008636475,0.018936157,0.005317688,-0.010765076,-0.014533997,0.031143188,0.0023040771,0.001490593,0.0050315857,0.021316528,0.029327393,0.045043945,-0.01701355,0.023345947,0.03125,-0.04296875,0.05307007,-0.0072784424,0.025802612,-0.017364502,0.009628296,-0.0390625,0.002040863,-0.0070152283,0.0043182373],"createdAt":"2026-04-18T18:46:02.136Z","updatedAt":"2026-04-22T10:31:36.313Z","lastSeenAt":"2026-04-22T10:31:36.313Z","tsv":"'/api/v1/claims/68':32,153 '/claims':175 '0.02':113 '000':108 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':129 '0x8335':98 '20':107 '2913':99 '300':132 '6':118 'Base network API' 'USDC micropayment API' 'accept':71 'access':69,143 'actual':212 'address':128 'advertis':142 'ai':167 'ai/ml':55 'amount':105 'analyt':54,166 'api':5,19,51,68,136,194 'assess':219 'base':8,22,82,101,109 'base-network' 'behind':152 'cannot':217 'catalog':180 'categori':165 'challeng':86 'claims endpoint' 'collect':42 'confirm':87 'connect':200 'content':206 'contract':97 'data':53 'decim':119 'doc':191 'document':156 'endpoint':6,20,30,64,89,164,211 'equal':112 'exact':125 'exampl':188 'financ':57,168 'function':151 'gate':3,17,74 'howev':148 'includ':173 'infer':56 'infrastructur':60 'instant':145 'key':137 'know':208 'label':66 'land':160 'limit':140 'list':162 'live':91 'low payment fee API' 'lowpaymentfee' 'lowpaymentfee.com':37 'made':122 'maximum':104 'network':83 'offer':40 'openapi':184 'page':161,195 'part':34 'pay':48 'pay-per-call API' 'pay-per-request':47 'payabl':9,23 'payment':78,94,120,147 'per':11,25,49,114 'per-request':10,24 'per-request-billing' 'platform':38 'post':72 'post-method' 'practic':215 'premium':4,18,67 'price':192 'prompt':202 'protocol':46,79 'public':179 'rate':139 'render':197 'request':12,26,50,73,115 'request/response':187 'requir':93 'return':213 'rout':176 'schema':185 'scheme':126 'second':133 'site':158 'span':52 'specif':63,150 'timeout':134 'unit':110 'upon':146 'usdc':14,28,96,116 'usdc-payment' 'use':117 'util':61,169,216 'various':163 'via':123 'wallet':201 'web3':58 'without':207 'x402':2,16,45,77,85 'x402 API' 'x402-gated':1,15 'x402-payment' 'x402-protocol':44","prices":[{"id":"90d048ef-1695-41f9-a5f2-fe5707faa339","listingId":"5b352db1-e6ee-4e8e-9204-b672f337a867","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/claims/68","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:46:02.136Z"}],"sources":[{"listingId":"5b352db1-e6ee-4e8e-9204-b672f337a867","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/claims/68","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:46:02.136Z","lastSeenAt":"2026-04-22T10:31:36.313Z"}],"details":{"listingId":"5b352db1-e6ee-4e8e-9204-b672f337a867","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/claims/68 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/claims/68"},{"claim":"The site advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/claims/68"}],"useCases":["Paying per-request for API access without API keys or subscriptions","Programmatic agent-driven API consumption using x402 payment protocol","Accessing premium data or services gated behind USDC micropayments on Base"],"bestFor":["Developers wanting keyless, pay-as-you-go API access","AI agents with x402-compatible payment capabilities","Users who prefer crypto micropayments over traditional billing"],"notFor":["Users who need detailed documentation or known response schemas before integrating","Anyone requiring free or trial access to evaluate the endpoint's output","Use cases requiring high-throughput with predictable flat-rate pricing"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:19.823Z"},"updatedAt":"2026-04-22T10:31:36.313Z"}}